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Anybody have a difficult time turning this screw? As soon as it gets tight and starts to expand the parking brake shoes I can't get a grip on it enough to turn it. I tried the hammer and screwdriver method and still can't get it to budge. It does turn before that so I know it's not seized.
Is the ring with the teeth spinning separately from the head that contacts the brake shoes?
The reason I ask is because when I went to adjust mine, the ring and head we're turning together. I thought they were one piece. I had to take a bar clamp and clamp the parking brake shoes so the head was held still. After soaking the ring with liquid wrench, I was finally able to separate the two.
From your picture it looks like what mine did. The gap between the toothed ring and head should change when spinning the ring. Does yours?
Last edited by 3sACROWD; Oct 24, 2017 at 08:45 AM.
It's been a little while but I recall when I did mine, I use two flat head screw drivers. There's a lock/tab that keeps the ring from turning on it's own. So on flat head holds that back and the over flat head I leverage on the wheel to turn it a few teeth at a time. It's a PITA. Also I'd hit that with some brake clean to knock the brake dust off. May move easier.
I forget which, but I do believe one or other (l/h vs. r/h) is a left hand thread...
Replacements are pretty easily available and inexpensive -- Wagner H7426
but a serious pain in the butt to put in.
You need to clean it first. Spray the thing with medium pressure water, it'll make it _way_ easier to turn. If you're unlucky, it's rusted, and you'll need to use penetrating lube as well.
After that, there's a tab that you can pry a little bit with a screwdriver to make the adjustment easier. However, I have found that it's not necessary after the adjustment area is properly cleaned up - you can just use a screwdriver and either use the palm of your hand to punch it, or a small hammer to tap it; one tap, one click of the adjuster.
You need to clean it first. Spray the thing with medium pressure water, it'll make it _way_ easier to turn. If you're unlucky, it's rusted, and you'll need to use penetrating lube as well.
After that, there's a tab that you can pry a little bit with a screwdriver to make the adjustment easier. However, I have found that it's not necessary after the adjustment area is properly cleaned up - you can just use a screwdriver and either use the palm of your hand to punch it, or a small hammer to tap it; one tap, one click of the adjuster.
Luckily mine were not rusted when I had to do the adjustment this past weekend. No need to touch the locking tab if everything is fairly clean and the adjuster still has some lube left in there. I used one screw drive and the leveraged it off either the hub or backing plate depending on which direction you needed to go and which side you were working on. I have an 8" digital caliper, so setting the correct shoe OD at 189.7mm nominal +/-0.1mm was real easy. Make sure to clean up the lip edge on the back side of the rotor with some sandpaper (80 or 100 grit) so you can get the rotor back over the shoes (once they are recentered).
Luckily mine were not rusted when I had to do the adjustment this past weekend. No need to touch the locking tab if everything is fairly clean and the adjuster still has some lube left in there. I used one screw drive and the leveraged it off either the hub or backing plate depending on which direction you needed to go and which side you were working on. I have an 8" digital caliper, so setting the correct shoe OD at 189.7mm nominal +/-0.1mm was real easy. Make sure to clean up the lip edge on the back side of the rotor with some sandpaper (80 or 100 grit) so you can get the rotor back over the shoes (once they are recentered).
So I cleaned the area but still can't really get it to turn. I did find the tab you were talking about.
Would it be easier if I added some grease to the star? Right now the star screw thing has zero lube.
So I cleaned the area but still can't really get it to turn. I did find the tab you were talking about.
Would it be easier if I added some grease to the star? Right now the star screw thing has zero lube.
Do not add grease/lub to the outside of the star wheel. You will most likely have to remove the star wheel, disassembly and clean it, then apply the correct type of grease/lub and only to the locations where noted/shown in the service manual and then reinstall the star wheel.
Parking brake adjustment screw..difficulties
